The Sure-Lok FE500 Series System is a wheelchair restraint system designed for use by individuals with mobility disabilities or spinal cord injury. The system includes over-center buckle and/or cam buckle straps with a minimum breaking strength of 6,000 pounds and 5,000 pounds, respectively. Most kits available in this system have vehicle anchoring hardware that is "positive-locking" to ensure that when the system is properly installed, the strap assemblies cannot be inadvertently released or disengaged. OPTIONS: Available in kits designed for Series A or Series L tracks (see separate entries), including FE501, with two cam buckle straps, two over-center buckle straps, and one heavy-duty Series A track fitting; FE501S, with S-Hooks, two cam buckle straps, two over-center buckle straps, and one heavy-duty Series A track fitting; FE510, with four over-center buckle straps and one heavy-duty Series A track fitting; FE510S, with S-Hooks, four over-center buckle straps, one heavy-duty Series A track fitting; FE520, with two cam buckle straps, two ratchet straps, and one heavy-duty Series A track fitting; FE520S, with S-Hooks, two cam buckle straps, two ratchet straps, and one heavy-duty Series A track fitting; FE521, with four ratchet straps and one heavy-duty Series A track fitting; FE521S, with S-Hooks, four ratchet straps, and one heavy-duty Series A track fitting; FE514, with two cam buckle straps, two overcenter buckle straps, and one heavy-duty Series L track titting; FE514S, with S-Hooks, two cam buckle straps, two over-center buckle straps, and one heavy-duty Series L track fitting; FE517, with four over-center buckle straps and one heavy-duty Series L track fitting; FE517S, with S-Hooks, four over-center buckle straps, and one heavy-duty Series L track fitting; FE522, with two cam buckle straps, two ratchet straps, and one heavy-duty Series L track fitting; FE522S, with two cam buckle straps, two ratchet straps, and one heavy-duty Series L track fitting; FE523, with four ratchet buckle straps and one heavy-duty Series L track fitting; and FE523S, with S-Hooks, four ratchet straps, and one heavy-duty Series L track fitting.